Common sense would be staying offline until you've watched the show.
I avoided the 'net until after I'd watched the UFC & The boxing because I wanted to avoid spoilers. Same as I used to when Bravo had the pre-taped events a day later on Sunday night.
If an event has happened people want to talk about it. You want to avoid spoilers stay the hell away for a few hours.

I learnt the hard way cus if I didn't go on any forums in the morning it'd be on facebook or i'll get text messages. I have to stay up for the fights now if Idon;t want to know the results before seeing the fights